Casing filler for tires



Filed May 5. 1927 Patented May 1, 1928. I i i UNITED STATES PATENT OFFICE. JOSEPH ALLEGRE, OF 'ruoLUMnE, CALIFORNIA.

CASING FILLER FOR TIRES.

Application filed May a, 1927. Serial No. 188,543.

This invention relates to. a casing fillerfor comprises a plurality of annular layers 15 of tires and has for an important object thereof cork, each layer being formed in short sec- 4 the provision of a device of this character tions 16 placed end to end and the joints bewhich may be very readily inserted, which tween the sections 16 of adjacent layers being 5 will be durable and efficient in service and staggered with relation to one another.

which may be relatively cheaply manufac- Surrounding the body thus produced is a tured. layer of pressed cork, indicated at 17, which 50 A further and more specific object of the serves to provide a housing for the inner invention is to produce a cork filling to rebody and to cover any small roughnessesin place the ordinary inner tube of tire casings, the body. The cork elements of the body are which isso constructed that the cork element preferably of natural cork and therefore will of the filler is protected from the elements. 7 not provide the necessary smooth finish. 55 These and other objects I attain by the Surrounding the pressed cork is a small construction shown in the accompanying layer of asbestos, indicated at 18, which drawings, wherein for the purposeof illusserves to insulate the cork against any heat tration is shown a preferred embodiment of generated by relative movement of the casing my invention and wherein and filler or by the separate portions of the 60 Figure 1 is a sectional view through a tire filler and to further insulate the cork filling provided with a filler constructed in accordagainst theaction of the elements. Such a ance with my invention, the filler being tire filler may be very readily and cheaply shown partially in section; produced and will provide substantially the Figure 2 is a transverse sectional view same resiliency provided by the ordinary in- 5 therethrough. ner tube.

Referring now more particularly to the Since the construction hereinbefore set drawings, the filler comprises an annulus forth is capableof a certain range of change formed in two sections 10 and 11, the secand modification without materially departtion 10 being substantially circular, While ing from the spirit of the invention, I do not the section 11 fills the gap between the ends limit myself to such specific structure except of the section 10 to complete the annulus. as hereinafter claimed. The section 10, as hereinafter more fully'set I claim forth,'is sufficiently flexible to permit the A casing filler for the tire casings of vesame to be insertedin a tire casing and after hicles comprising an annulus adaptedlto fit this insertion, thesection 11, when placed in within the tire including a core formed of position, will effectually prevent its removal. annular laminations, each lamination com- If desired, wedges 12 may be employed to prising a series of cork blocks spaced end to insure proper spreading of the ends of the end, the joints between the blocks of adjasection 10, so that the device will fit a tire cent laminations being staggered with relacasing 13 within which it is placed. The tion to one another and a covering for the section 11 has preferably extended from the core including a sheet of compressed cork 40 inner surface thereof a plug or bolt 14 applied directly to said core.

g gadapted to pass through the tire valve open- In testimony'whereof I hereunto afiix my I mg of a tire rim to lock the sections against signature. 7 rotation thereon. Each section 10 and 11 JOSEPH ALLEGRE. 

